Answer:
The answer is B.
Step-by-step explanation:
Its B because in the problem it says $12 per yard which means it would be 12y. The 40 Rupesh already had so just add it and it would be 12y+ 40. The key word "At least" results into the sign being greater than or equal to. So the final answer would be 12y+40 148.
Answer:
Correlation coefficient ≈ 0.9445
This indicates that the weight of a student increases as the height of the student increases.
Step-by-step explanation:
The rest of the question is the following table
value of x (<u>height</u>) are 58, 59, 60, 62, 63, 64, 66, 68, 70
Value of y (<u>weight</u>) are: 122, 128, 126, 133, 145, 136, 144, 150, 151
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To calculate the correlation coefficient we will use the following form:
So, n (the number of terms) = 9
∑x = 570, ∑y= 1236, ∑ x²= 36234, ∑ y²= 170694 and ∑xy=78617
So, the correlation coefficient =
∴ r = 0.9445
So, weight of a student increases as the height of the student increases.